英文:
More than one DbContext in the same project
问题
我有一个WebAPI项目，在这个项目中，我必须使用多个DbContext，但我不知道如何做到这一点。
有3或4个数据库，使用Code First我将在每个数据库中创建一个新表，并将其与每个数据库中找到的表建立关系。
如何以一种通用的方式实现这一点？
英文:
I have a WebAPI project and in this project I have to use more than one DbContext but I do not know how to do that.
There are 3 or 4 databases and with code first I will create a new table in each of them and give relation to the table that is found in each database
How can I do this in a generic way?
答案1
得分: 1
有多个数据库。它们应该添加到服务中。
示例：
var connectionString1 = builder.Configuration.GetConnectionString("Db1Connection");
builder.Services.AddDbContext<DbfirstDbContext>(options =>
options.UseSqlServer(connectionString1));
var connectionString2 = builder.Configuration.GetConnectionString("Db2Connection");
builder.Services.AddDbContext<DbtwoDbContext>(options =>
options.UseSqlServer(connectionString2));
英文:
to have multiple databases. they should be added to the services.
example :
var connectionString1 = builder.Configuration.GetConnectionString("Db1Connection");
builder.Services.AddDbContext<DbfirstDbContext>(options =>
options. UseSqlServer(connectionString));
var connectionString2 = builder.Configuration.GetConnectionString("Db2Connection");
builder.Services.AddDbContext<DbtwoDbContext>(options =>
options. UseSqlServer(connectionString2));
</details>
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